Hello. This is my first time using the forum, so I apologize if this suggestion has already been made. In real life, I'm sure you've taken a train on a rainy or snowy day at least once. When a train runs in such bad weather, the sound of the main electric motor (inverter sound) can be heard the moment the wheels slip. (It's like this) In the current TSW4, the only sounds you can hear are the sound of the wheel spinning violently and a rough motion blur when the wheel slips, so I think adding this motor sound would make it a little more realistic. (I would be happy if it was added to AI services as well!) Thank you for watching this far I'm not good at English and am still learning, so I used a translator. I apologize if there are any parts of the text that are unnatural.